Process of treating transmission-bands.



seen at. somrrsorr, or LOUISVILLE, xnrrrucx'r'.

Hamming.

Application filled June 1,

Be it known that I, Cam. J. JOHNSON, a fin citizen of the United States residing at Louisville, in the county of deiferson and State of Kentucky new and useful Improvements in Processes of Treating Transmission-Bands, of which the following is a specification. V v

This invention has for its object thetreatment of fabric bands,

sion,'brake, and clutch bands, and particularly those emplo 'ed on planetary transmission gears inauton' iobiles, trucks, etc., in such manner that their durability and efiiciency ite, forty-five per cent. para cent.

heated until liquid and the added and the mixture stirred until it is a omo neous mass. The strapor band to be tree is boiled in this mixture until-it is completely impregnated and is then removed and permitted to. so ready for use.

- Specification of Letters Eatent.

, have invented certain employed as transmiswill be increased and the chattering now- The parafiin and grease are cool whereupon it will be raecnss or rana'rme'rmsmrssroN-sems. I

' Patented Feb. d, 11911293., 7 me. Ser1aINo.2$7,8E?.

During the boiling of the band, the parafand grease will penetrate the fabric and raphite will be thereby carried into the ody of the fabric as well as deposited on the surface thereof. u 35 Straps, bands, and the like treated accord ing to my process remain pliable under all conditions and their surfaces do not become glazed or hardenedby reason of their contact with the brake or gear drum and the chatm by the sudden gripping and releasing of the brake or transmission drum, is eliminated and a smooth even friction obtained. The chattering is very annoyin A structive of t e band and of the mechanism. 'Bands or straps treated according to Igy process are, therefore, more durable and e eient than bands not so treated. j

Having thus described my invention, what 5@ is chinfieg as new is: ted h f 1. a ric strap p a wit para fin, ease, and t he process 0 treating fabric straps which consists in boiling the same in a mixture containin fifty per cent. of graphite, forty-five per cent. of parafin, and five per cent. of se. Y

In testlmon whereof I afix in? ai atuie. J. JOHNSO as] to the operator and is also de- ,5 

